Which Mods Need It in ZeroCore2

Install ZeroCore2 whenever a mod you use lists it as a dependency. If it is missing, those mods will fail to load and the game will report a missing-dependency error for the mod id zerocore.

• Big Reactors / Extreme Reactors are built directly on ZeroCore2 - the reactors and turbines use its multiblock assembly system, its GUIs, and its networking. They will not run without it.
• Other multiblock or machine mods from the same author family also depend on it.

Because it is a shared dependency, the rule of thumb is simple: add ZeroCore2 when a mod tells you to, and leave it out otherwise. The mod that requires it provides the actual machines and content.